Joint for oars or the like.



J. W. GRIFFENBERG.

JOINT FOB OARS OR THE LIKE.

APPLIOATION ED MAY 25. 1910. Patented Aug. 20, 1912.

V/Wwweoa mmi mwmb Who meg COLUMBIA PLANDGRAPH C0. WASHINGTON, D. C.

JOHN W. GRIFIFENBERG, OF PHILADELIHIA, PENNSYLVANIA, ASSIGNOR, BY DIRECTAND MESNE ASSIGNMENTS, OF ONE-THIRD TO \VILLIAM V. MADARA AND ONE- THIRDTO EARNEST JULIUS KREITZBURG, BOTH OF PHILADELPHIA, PENNSYL- VANIA.

JOINT FOR OARS OR THE LIKE.

Specification of Letters Patent.

Application filed May 25, 1910.

Patented Au 20, 1912.

Serial No. 563,250.

To all whom it may concern Be it known that I, JOHN W. GRIFTEN- BERG, acitizen of the United States, residing at Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented certain new anduseful Improvements in Joints for Oars or the Like, of which thefollowing is a specification.

My invention relates to improvements in a joint for oars, canoe paddles,poles and the like and the object of my invention is to provide a jointwhich may be readily attached to any article to be ointed.

A further object of my invention is to construct a joint which willpermit the members of the article to construct a joint which will permitthe members of the article to which it is attached to be folded so thatthe article will occupy a small and compact space when not in use; and astill further object of my invention is to construct the joint in such amanner that the members cannot become detached, which will rigidly holdthe members extended and which will not weaken the article to which itis attached.

Referring to the accompanying drawing: Figure 1 is a perspective view ofan oar embodying my invention; Fig. 2 is a vertical longitudinalsectional view of my improved joint; Fig. 3 is a view similar to Fig. 2showing the parts in the folded position; Fig. 4 is a vertical sectionon line 44 Fig. 2; Fig. 5 is a horizontal section on line 5 5 Fig. 2.

In the drawings, in which like references refer to like parts, 1represents an oar which has been bisected forming the members 2 and 3.

My improved joint consists of the ferrules 6 and 7 which are placed overthe ends 8 and 9 of the members 2 and 3. The said ends 8 and 9 arereduced so that the outside diameter of the ferrules 6 and 7 will beequal to the diameter of the member 2, over which the sleeve 10 slides.The ends of the ferrules 6 and 7 and the ends 8 and 9 of the members 2and 3 are provided with slots 12 and 13 to receive the link 15 whichpermits the members to turn freely upon the pins 16 and 17 or othersuitable fastening devices, which hold the ends of said link securely tothe members 2 and 8, thus connecting the members 2 and 3 together sothat they cannot become detached but will be free to be folded uponthemselves. The sleeve 10 will slide over the ferrules 6 and 7 and alsoover the link 15, and when said sleeve is in the position shown in Fig.1, the members will be rigidly held in a straight line, the same asthough they had not been cut in two and when the sleeve is withdrawnfrom the ferrule 7 and the link 15, as shown in Fig. 3, the members 2and 3 may be folded so that they will occupy a small space.

The ferrule 7 is provided with a flange 18 which forms a stop for thesleeve 10 to abut against, to hold the said sleeve from moving beyondthe ferrule 7 and said sleeve 10 is held tightly upon said ferrule 7 bythe latter being slightly larger in diameter at the point 19, to make atightly fitting joint between said ferrule and said sleeve, which willtend to prevent the sleeve from slipping off the ferrule 7.

The sleeve 10 may be made of heavy material where the article, to whichmy improved joint is applied, is used for heavy work so that theembodiment of my joint will not weaken the article in any respect.

My improved joint may be used for connecting-sections forming long rodsor poles, such as are used in buildings having high ceilings, for thepurpose of reaching electric lamps and the like, as well as the usesheretofore mentioned.

Having thus described my invention I claim and desire to secure byLetters Patent:

In an oar or the like, divided into two sections, the combination offerrules secured upon the adjacent ends of said sections, said ferrulesand the ends of said sections having transverse slots formed in the endsthereof, a link having its ends pivotally mounted in the slots formed inthe adjacent ends of the In testimony whereof I aflix my signaturesections and the ends of the feru1es, a sleeve in presence of tWoWitnesses.

sic a ly mounted upon one 0 said sect-ions and adapted to embrace bothof the said fer- JOHN GRIFFENBERG' rules to hold the sections inalinement and a Witnesses:

flange formed upon one of the ferrules to J OI-IN F. BAsFoRD,

limit the movement of the sleeve. M. R. CLEELAND.

-Gopies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents, Washington, D. G.

